Zehnder launches MVHR system for tight spaces

This article was originally published in issue 46 of Passive House Plus magazine. Want immediate access to all back issues and exclusive extra content? Click here to subscribe for as little as €15, or click here to receive the next issue free of charge

Small in size and narrow enough to be ceiling mounted, the new ComfoAir Flex is a compact solution for improving indoor air quality in urban apartments, small houses and student accommodation, where space is at a premium.

Despite its compact size, the ComfoAir Flex boasts a heat recovery efficiency rate of 96 per cent, ensuring minimal heat loss and contributing to substantial energy savings. The new system also performs to current and future EPB requirements at energy class A+.

Available in two sizes for properties up to 200 m2 and 250 m2, ComfoAir Flex is adaptable to a wide scope of buildings, due to the system’s ceiling-mounted design and four, 45-degree turnable bends for versatile duct installation. Each air connection can be individually turned to connect to a duct inline with the unit or rotated 90 degrees. This allows flexibility for developers to design projects with less restrictions.

Zehnder Group UK commercial director Stuart Smith said: “The ComfoAir Flex brings a potential revolution to the UK construction industry. Its unique attributes could significantly alter the industry’s approach to environmental sustainability and occupant comfort, addressing the critical need for energy-efficient, space-conscious buildings in the urban landscape.

Smith said the new system exemplified Zehnder’s commitment to the passive house standard and has been well received on the continent.

“The introduction of the ComfoAir Flex into the European market was met with enthusiasm, and we anticipate similar success in the UK. The product has been appreciated for its energy efficiency, health benefits, user-friendliness, and adaptability in various installation scenarios. It’s going to be a game-changer in providing better indoor air quality for smaller living spaces.”

The ComfoAir Flex features upgradable high-grade filters and 100 per cent full and filtered modulating summer bypass to maintain a continuous flow of fresh, filtered air, and significantly enhanced conditions to support occupant comfort and health.

The unit’s software allows for left or righthand configuration, adding an element of adaptability to its installation. Furthermore, its Wi-Fi enabled app control as standard gives users complete control over their indoor climate, contributing to an enhanced user experience.

The system can also be integrated into Smart Home via KNX and ventilate on demand thanks to the CO2 sensor.